On Feb 14, 2018, at 8:52 AM, Perry E. Metzger <perry@xxxxxxxxxxxx> wrote:
On Tue, 13 Feb 2018 16:34:14 -0800 "Doug Jones"
<dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "randome" for DMARC)
wrote:
Isothermal LOX and propane tanks allow the propane density to rise
to 728 kg/m3, approaching the density of kerosene with nearly the
Isp of methane. No fuel vapor boiloff makes for reduced fire
hazards, too.
I note that the gap between the boiling point of LOX and the melting
point of propane is quite narrow, less than 5 degrees C. Does this
cause any problems in practice? It certainly would mean you couldn't
use subcooled LOX for increased density.